Valve lifter



Jan. 4, 1927. 3,45

F. FRAIZER VALVE LIFTER Filed y 15. 1925 Patented Jan. 4, 1927.

FRANK L. FRAIZER, OF TROY, OHIO, ASSIGNGRTO THE NEW FAVORITE MANUFAC- TUBING COMPANY, OF TROY, OHIO.

VALVE LIFTER.

Application filed May 13, 1925. Serial No. 29,908.

The present invention is directed to improvements in valve lifters.

The prin'iary object of the invention is to provide a device of this character so con- 6 structed that the jaws thereof can be easily and quickly spread with very little effort upon the part of the operator.

A further object of the invention is to provide a device of this kind constructed in such manner that the jaws thereof may be automatically spread and held positively in such position in an extremely simple inanncr, thus leaving the hands of the user free for other purposes.

A still further object of the invention is to provide a valve lifter consisting of a minimum number of parts capable of being readily and compactly assembled, the construction being durable, eiiicient in operation and can be manufactured at a very small cost.

With these and other objects in View, this invention resides in the novel features of construction, formation, combination and arrangement of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which Figure 1 is a side elevation of the device, showing the aws in their spread positions.

Figure 2 is a similar view, the jaws being so shown in their inoperative positions.

Figure 3 is a top plan view.

Figure 4 is a sectional view on line t4= of Figure 1.

The device consists of a pair of jaws l and 3:7 2, provided respectively, with stem engaging slots 3 and i. These jaws have formed integral therewith shanks 5 and 6, respectively, said jaws and shanks being preferably formed from pressed steel, the shanks 4 being U-shapedin cross section to add to the rigidity and strength thereof. The shanks have their concave faces disposed in opposed relation and have their outer ends pivotally connected by a pin 7 A lever 8 is employed and is formed from a single length of metal bent transversely in termediate its ends to provide spaced arms 9 to impart to said lever a looped formation.

The forward ends of the arms 9 of the lever embrace the shank 5 at a point adjacent the jaw l and terminate in off-set cars 10, the purpose of which will appear later.

A link 11 is provided and has one end pivotally connected to the shank 6 by a cross pin 12, the other end of the link being pivotaily connected between the ears 10 by a pin 13, said link and ears forming, in effect, a toggle connection between the respective shanks.

In operation the lever 8 is swung to the position as shown in Figure 2 of the drawing, thus causing the jaws 1 and 2 to lie in close proximity for engagement with the valve stem in the usual manner. The shanks and lever are then grasped and upon exert ing pressure thereon the lever will be swung toward the shank 6 and simultaneously therewith the ears 10 and link 11 will swing forwardly and beyond a dead center, which action will cause the shanks to move away from each other to properly spread the jaws. Continued pressure upon the lever will place the ears and link in the position as shown 111 Figure 1, and at which time the jaws will be held positively in their spread position. /Vhen the jaws are in their extreme spread positions the arms 9 of the lever 8 will embrace the associated shank, and when the parts are in such position the hands of the user are free for other uses. To remove the jaws from engagement with the valve stem it is only necessary to swing the lever 8 upwardly, whereupon the ears and link will swing rearwardly, thereby permitting the jaws to return to their normal or inoperative positions.

The forward ends of the arms 9 are pivotally connected to shank 5 by a pin 14.

What is claimed is A valve lifter comprising a pair of pivot ally connected shanks, jaws carried by the shanks, a link having one end pivotally connected to one of the shanks, a lever formed from a single length of material and bent intermediate its ends to provide spaced arms for spanning one of the shanks, said arms having off-set ears carried thereby spanning the adjacentend of the link, and means for pivotally connecting the ears and link.

In testimony whereof I afiix my signature.

FRANK L. FRAIZER. 

